package com.itheima.service;

import com.itheima.entity.Result;
import com.itheima.pojo.LoginInfo;
import com.itheima.pojo.Member;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public interface MemberService {

    Member findById(String telephone);

    Member add(Member member);

    int findCountByAge(HashMap<String, String> ageMap);

    List<Map> getCountsBySex();
}
